after 4 days in -20 weather battery would barely turn mine over & eventually only got solenoid clicks. no block heater installed yet. Discovered the battery charger/booster was U/S so hooked up to another vehicle battery. even with double glow plug application then I would get firing for 1 ot 2 turns, stop , repeat, firing, then stop, start fring, then stop. after 10 minutes eventually got it to run and it was fine after 10 minute warmup. definitely have to get the block heater install and the battery warmer installed.

afterwards drove therough about 10 miles of bush - about to be converted to snowmobile trails for the season - no sweat. for offroading, with all the weight, works just great!